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Water lens bucket / solar water heater

Water lens bucket
Water lens bucket

This is a water heater designed for power shortage areas. Low cost consideration makes it possible to promote it in poor areas. The cover of the bucket is made of a layer of transparent plastic film. After adding an appropriate amount of water on it, due to the pressure of water, the whole cover becomes a water lens, which can achieve efficient heat gathering effect. Strong sunlight can heat the water in the bucket to an ideal temperature in two hours; weak sunlight can also heat the water to a satisfactory temperature in eight hours. People in poor areas put the product outdoors during the day and take a hot bath when they go home at sunset.


Hubei University of Technology

Hubei University of Technology
Wuhan, China

Shiqi Yue,
Hubei University of Technology

Rui Cheng,
Hubei University of Technology